EP 2888070 B1 20180131 - METHOD OF OPERATIONAL CONTROL OF ELECTRON BEAM WELDING BASED ON THE SYNCHRONOUS INTEGRATION METHOD
Title (en)
METHOD OF OPERATIONAL CONTROL OF ELECTRON BEAM WELDING BASED ON THE SYNCHRONOUS INTEGRATION METHOD
Title (de)
VERFAHREN ZUR BETRIEBSSTEUERUNG EINER ELEKTRONENSTRAHLSCHWEISSUNG AUF BASIS VON SYNCHRONEN INTEGRATIONSVERFAHREN
Title (fr)
PROCÉDÉ DE COMMANDE FONCTIONNELLE DU SOUDAGE PAR FAISCEAU D'ÉLECTRONS BASÉ SUR LA MÉTHODE D'INTÉGRATION SYNCHRONISÉE
Publication
Application
Priority
- RU 2012136243 A 20120824
- IB 2013056836 W 20130823
Abstract (en)
[origin: WO2014030144A2] The invention relates to the field of electron beam welding and may be used when electron-beam welding structural mate- rials with control and management of the power density of the electron beam directly within the welding process. The method of electron beam welding with operational control of the power density and focus level of the electron beam is differentiated by the fact that it contains stages in which: the electron beam welding is performed with a sinusoidally or linearly oscillating electron beam in the frequency range from 300 to 2,000 Hz; during the welding process, the waveform of the secondary current in the plasma is measured, filtered, and rectified; the filtered-and- rectified or original waveform of the secondary current in the plasma is processed using the synchronous integration method; the magnitude of the delay function, which results from processing the secondary waveform using the synchronous integration method, is measured relative to the wave- form of the current in the deflection coils; the focusing current is controlled while holding the value of the delay function mentioned above at a constant level which corresponds to a specified magnitude of the power density of the electron beam.
IPC 8 full level
B23K 15/00 (2006.01); H01J 37/21 (2006.01); H01J 37/304 (2006.01)
CPC (source: EP)
B23K 15/0013 (2013.01); B23K 15/002 (2013.01); B23K 15/0046 (2013.01); H01J 37/21 (2013.01); H01J 37/315 (2013.01); H01J 2237/213 (2013.01); H01J 2237/216 (2013.01); H01J 2237/30472 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014030144 A2 20140227; WO 2014030144 A3 20140703; EP 2888070 A2 20150701; EP 2888070 B1 20180131; RU 2012136243 A 20140227; RU 2519155 C2 20140610
DOCDB simple family (application)
IB 2013056836 W 20130823; EP 13802104 A 20130823; RU 2012136243 A 20120824